Belzona Elastomer Used to Repair Torn Conveyor Belts at Recycling Plant

KHIA ID: 8126
Industry: General Industry (GIND)
Application: SHM-Solids Handling Machinery (SHM)
Substrate: Reinforced rubber
Customer Location: Recycling Plant - Zurich, Switzerland
Application Date: April 2019
Products:

Belzona 2311

Belzona 9341

Belzona 2911 

Belzona 9111 

Problem: Straps of the conveyor belt had been replaced on a few weeks earlier and the client had no replacements in stock. This damage had occurred on a conveyor belt in the stage of the recycling process, during a busy period of the year. Therefore, the conveyor belt needed to be repaired as soon as possible.
Photograph Descriptions
  1. Damage along the length of the conveyor belt 
  2. Heavy scoring and tears resulted in shutdown 
  3. The repair area masked off for application of Belzona 2311 
  4. The Belzona repair allowed for a return to service the very next day
Application Situation
A recycling plant specialising in urban mining, extracting and reusing building materials from previous sites e.g. concrete. At the facility, a large conveyor belt had become caught on a defective scraper, causing a linear tear over 32m along the rubber.
Application Method
The application was carried out in accordance with Belzona Know-How System Leaflet SHM-1. Any loose parts of the rubber were first cut away, before the substrate was prepared using a rotary wire brush. The entire area was subsequently cleaned using Belzona 9111. The defected areas were masked off and conditioned, before Belzona 2311 was applied to the surface. This is a fast-curing material that is cold-curing and requires no specialist application tools. To reinforce the repair Belzona 9341 (a flexible and strong farbic mesh) was embedded into the elastomer and then encapsulated with a secondary application of Belzona 2311.
Belzona Facts
Due to the fast turnaround required, the Distributor carried out the repairs on the same day. The application took 7 hours to complete compared to replacement, which would caused approximately 3 times the amount of downtime. This allowed the plant to run the conveyor belt the very next day. This belt is still in use after 9 months without any problems at the repair points.
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